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2022 ◽  
Vol 964 (1) ◽  
pp. 012003
Author(s):  
Nguyen Thi Thanh Huong ◽  
Ho Dinh Bao ◽  
Cao Thi Hoai ◽  
Phan Thi Hang ◽  
Ngo The Son ◽  
...  

Abstract Remote sensing (RS) and Geographic information system (GIS) is widely applied in the world and gradually affirms its role in Vietnam in managing agricultural and forest resources. This application is highly effective, providing information timely for managers to make decisions and build development strategies. In this study, RS and GIS were integrated to assess suitability for key crop species in Dak Nong province including coffee, rubber, cashew, and durian based on their suitability to site conditions such as soil (soil type, soil texture, soil thickness), topography (elevation, slope) and climate (temperature, precipitation). Using the restrictive method and overlapping map layers of natural factors, classified into adaptive levels according to FAO (1976). Results show that most land areas in Dak Nong province have different levels of potential suitability for key crop species ranging from non-adaptive to lesst-adaptive and moderately adaptive. However, most suitable areas for key crops are only at low (accounting for a large proportion) and the average adaptation level. The findings from the study are the scientific information for managers to make decisions regarding the structure of major crops in the province.


2022 ◽  
pp. 335-360
Author(s):  
Ana Crespo Solana ◽  
María José García-Rodríguez

2022 ◽  
Vol 6 (1) ◽  
pp. 68-80
Author(s):  
Akram Abdulrahman

The present experiment was conducted to evaluate soil samples which had been taken from depths ranging from 0-30 cm in greenhouses planted with different vegetables such as cucumbers, tomatoes, peppers and eggplants in 24 agricultural sites in 19 villages. GIS application was used to make maps showing the results of a field survey that was conducted. The experiment was conducted for an area of 12 km2 in the Tainal Plain, west of Sulaimaniyah Province. Nearly 30% of the soil of the greenhouses were heavily infected. Plant analysis showed that the characteristics of ash, fat and moisture were significantly affected as a result of infection with nematodes. The spread of root-knot nematode juveniles in the villages of Al-Mahmoudia, Kani Pengsharma and Kani Shaya was 706, 695 and 622 per 250 g of soil. In tissues of the studied plants, the highest nitrogen content was 68.2 mg in Ziyeka, 60.4 mg in Gawani and 59.7 mg in Ali Bzaw. Phosphorus concentrations were highest in Kani Shaya, Shwankara and Ziyeka (25.5, 25.3 and 23.1 mg, respectively). Warmizyar had 91.8 mg of potassium, Kani Shaya had 78.6 mg and Kani Big had 71.6 mg. The calcium concentrations in Ziyeka, Gawani and Mewk were 54.5, 48.4 and 47.7 mg, respectively.


2021 ◽  
Vol 4 ◽  
pp. 1-8
Author(s):  
Jesse Friend ◽  
Mathias Jahnke ◽  
Niels Walen ◽  
Gernot Ramminger

Abstract. Web applications which are high functioning, efficient, and meet the performance demand of the client are essential in modern cartographic workflows. With more and more complex spatial data being integrated into web applications, such as time related features, it is essential to harmonize the means of data presentation so that the end product is aligned with the needs of the end-user. In this paper we present aWeb GIS application built as a microservice which displays various timeseries visualizations to the user to streamline intuitiveness and functionality. The prototype provides a solution which could help to understand various ways in which current web and spatial analysis methods can be combined to create visualizations that add value to existing spatial data for cartographic workflows.


2021 ◽  
Vol 6 (26) ◽  
pp. 121-129
Author(s):  
Muhamad Zuraini Idris ◽  
Robiah Suratman ◽  
Salfarina Samsudin

The higher demanding factor for residential and commercial units has seen an increasing number of STP maintained by IWK every year. This increasing number of STP has forced IWK to incur increased operating and maintenance costs. With a limited number of employees and a large catchment area, it has raised several issues and problems such as the issue of encroachment into the STP land. To overcome the issues and problems, strategic land development is needed where it is also a method in achieving sustainable development. This study used a qualitative method by analyzing the current work procedures or guidelines and government documents used by IWK such as the Federal Constitution of Malaysia, National Land Code, and Malaysian Sewerage Industry Guidelines. The findings of the study found that the function of IWK in sewerage land management for public STP and the former STP site is quite limited. Thus, a new procedure or guidelines need to be developed to improve these weaknesses. Based on the land issues faced by IWK, it shows that the strategic land development will be able to help IWK in the planning stages in the future effectively. While sustainable development can be achieved by IWK using a combination between the new land management model and GIS application. This new land management model needs to be combined and should include all the existing procedures or guidelines and be controlled by one unit only. GIS as the most powerful tool today seen can help IWK to manage all the matter related sewerage lands, such as finding the decommissioned STP site, selecting the new location for the Regional STP project, and selection of the new alignment for a property connection project. Indirectly, it can help IWK to reduce the cost of operation and maintenance, sewerage land issues, environmental issues, and others.


2021 ◽  
pp. 599-609
Author(s):  
Chan Van Mai ◽  
Son Hoang Nguyen ◽  
Cham Dinh Dao ◽  
Tin Van Le ◽  
Hang Anh Phan

2021 ◽  
pp. 487-501
Author(s):  
Sonila Papathimiu ◽  
Esmeralda Laci ◽  
Sabri Laci

2021 ◽  
Vol 10 (2) ◽  
pp. 170-177
Author(s):  
Andy Bhermana ◽  
Suparman Suparman ◽  
Hijrah Tunisa ◽  
Bambang Hendro Sunarminto

Land allocation for agricultural lands is required when the region have potency to be developed while the same time, conservation aspects are still considered. Central Kalimantan Province with total areas of 15, 451, 287 hectares has potential land available for agricultural development. At initial stage, with a landscape scale, land resource potential is needed to be assessed for planning purposes. The aimed of this study was to design the spatial concept of agricultural landscape planning on sustained basis. Methodology used in this include concept of land capability evalution (LCE) approach and geographic information system (GIS) application. The result of evaluation showed that Central Kalimantan was classified into 6 land capability classes i.e class II, III, IV, VI, VII, and VIII with several limiting factors such as peat depth, drainage, slope, and texture. Within GIS environment, the result of spatial analysis shown that total areas of agricultural land region was 9,571,231 hectares or 61.95% of total Central Kalimantan province. This indicates that the lands are still widely available for agricultural development.  These areas are located not only in wetlands typology but also found in dryland areas. Specific program that specific to location can then be formulated in order to develop the areas.


2021 ◽  
Vol 14 (20) ◽  
Author(s):  
Ali Firat Cabalar ◽  
Bahadir Karabas ◽  
Baris Mahmutluoglu ◽  
Ozgur Yildiz

2021 ◽  
Vol 140 (3) ◽  
pp. 1-13
Author(s):  
Antonio Stroscio ◽  
Germana Barone ◽  
Giorgio De Guidi ◽  
Maura Fugazzotto ◽  
Roberta Occhipinti ◽  
...  

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